sif driver initial commit part 3

sif driver initial commit part 3

sif_pt.c:        SIF (private) page table management
sif_pt.h:        SIF (private) page table management.
sif_qp.c:        Implementation of IB queue pair logic for sif
sif_qp.h:        Interface to internal IB queue pair logic for sif
sif_query.c:     SIF implementation of some of IB query APIs
sif_query.h:     SIF implementation of some of IB query APIs
sif_r3.c:        Special handling specific for psif revision 3 and earlier
sif_r3.h:        Special handling specific for psif revision 3 and earlier
sif_rq.c:        Implementation of sif receive queues
sif_rq.h:        Interface to sif receive queues
sif_sndrcv.c:    Implementation of post send/recv logic for SIF
sif_sndrcv.h:    Interface to IB send/receive, MAD packet recv and
sif_spt.c:       Experimental implementation of shared use of the OS's page tables.
sif_spt.h:       Experimental (still unsafe)
sif_sq.c:        Implementation of the send queue side of an IB queue pair
sif_sq.h:        Implementation of the send queue side of an IB queue pair
sif_srq.c:       Interface to shared receive queues for SIF
sif_srq.h:       Interface to internal Shared receive queue logic for SIF
sif_tqp.c:       Implementation of EPSA tunneling QP for SIF

Signed-off-by: Knut Omang <knut.omang@oracle.com>